Sen of Japan (8480 W. Desert Inn) is known for its unique concoctions, and roll No. 17 is no exception. Better known as the spicy spider roll, it consists of soft-shell crab, masago (smelt roe) and spicy aioli, topped with seared salmon and mango and rounded out with a drizzle of sweet chili sauce, fresh lemon juice and shichimi pepper flakes. The $15 roll is the mastermind of mad genius/sushi chef Shinji Shinchiri—spicy balances sweet and hot offsets cold in each perfect bite; the smokiness of the seared toppings completes the holy trinity.